An arbitrary interconnection of impedances and admittances, with input
and output force and/or velocities defined, results in a one-port with
admittance expressible as
In any mechanical situation we have
, in principle, since at
sufficiently high frequencies, every mechanical system must ``look like
a
mass.''
8.3 However,
for purposes of
approximation to a real physical system, it may well be best to
allow
and consider the above expression to be a
rational approximation to the true admittance function.
Next Section: Passive One-PortsPrevious Section: Mechanical Impedance Analysis